Home / 1,207,162.08-1,665,875.70-663,303.78

Finding the Fourth Proportional to 1,207,162.08, 1,665,875.70 and 663,303.78

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Solution

The fourth proportional to 1,207,162.08, 1,665,875.70 and 663,303.78 is: 915,354.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,162.08 : 1,665,875.70 = 663,303.78 : x
  2. Step 2: Convert to fraction form
    1,207,162.08/1,665,875.70 = 663,303.78/x
  3. Step 3: Cross multiply
    1,207,162.08x = 1,665,875.70 × 663,303.78
  4. Step 4: Simplify right side
    1,207,162.08x = 1,104,981,648,820.15
  5. Step 5: Solve for x
    x = 1,104,981,648,820.15/1,207,162.08
  6. Step 6: Final answer
    x = 915,354.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.